diff --git a/.forgejo/workflows/build.yml b/.forgejo/workflows/build.yml
index 776ed29..1bca44c 100644
--- a/.forgejo/workflows/build.yml
+++ b/.forgejo/workflows/build.yml
@@ -62,10 +62,6 @@ jobs:
             version: 8.2
           - language: php
             version: 8.3
-          - language: lua
-            version: 5.1
-          - language: lua
-            version: 5.2
           - language: lua
             version: 5.3
           - language: lua
@@ -76,10 +72,6 @@ jobs:
             version: 17
           - language: java
             version: 21
-          - language: csharp
-            version: 6
-          - language: csharp
-            version: 8
           - language: redot
             version: 4.3
     steps:
diff --git a/images/actions/csharp/Dockerfile b/images/actions/csharp/Dockerfile
deleted file mode 100644
index 3e96751..0000000
--- a/images/actions/csharp/Dockerfile
+++ /dev/null
@@ -1,4 +0,0 @@
-FROM git.euph.dev/actions/runner-basic:latest
-ARG PACKAGE_VERSION
-
-RUN sudo apk add --no-cache "dotnet$PACKAGE_VERSION-sdk"
\ No newline at end of file